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Enhancement of second harmonic generation in a periodic structure with a defect

✍ Scribed by Jordi Martorell; R. Corbalán


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
515 KB
Volume
108
Category
Article
ISSN
0030-4018

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Second-harmonic generation and electroni
✍ I.D.L. Albert; Puspendu K. Das; S. Ramasesha 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 581 KB

The second-harmonic-generation (SHG) coefficients and properties of low-lying electronic states in polymethineimines (-CH=N-), up to x= 5 are calculated exactly withm the PPP (Pariser-Parr-Pople) Hamiltonian. The sp2 hybridized nitrogenatom parameters for the PPP model are taken from the literature